211123132303 has 2 divisors, whose sum is σ = 211123132304. Its totient is φ = 211123132302.

The previous prime is 211123132217. The next prime is 211123132349. The reversal of 211123132303 is 303231321112.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211123132303 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211123132393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105561566151 + 105561566152.

It is an arithmetic number, because the mean of its divisors is an integer number (105561566152).

Almost surely, 2^211123132303 is an apocalyptic number.

211123132303 is a deficient number, since it is larger than the sum of its proper divisors (1).

211123132303 is an equidigital number, since it uses as much as digits as its factorization.

211123132303 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 211123132303 its reverse (303231321112), we get a palindrome (514354453415).

The spelling of 211123132303 in words is "two hundred eleven billion, one hundred twenty-three million, one hundred thirty-two thousand, three hundred three".